What are thread-forming screw tips?
What are thread-forming screw tips? |
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A screw with a thread-forming tip forms its own thread in material when being driven in.
It does this by pushing against the material rather than cutting through it. |
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What are the different types of thread-forming tip? |
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Type ABA type AB tip has a sharp point that pierces the material as the screw is driven in. |
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Type AB tips are often found on wood and sheet metal screws. |
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Type BA type B tip has a flat end and is usually used in light and heavy metals, plastic and plywood. |
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Type B tips are usually found on machine screws only. |
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